Response time on orders of customers is becoming a critical issue to achieve a competitive advantage. This thesis presents an Expert System for simulating order processing activities, providing control over the order processes and reporting the orders status online. Managers would have control on orders transactions, and workshop floor supervisors could monitor and control the orders processing online. An information system model is to be designed, and a prototype is to be developed. A case study is to be conducted to prove the developed prototype system. The assumed activities to be covered within this system; procurement, inventory control, accounting, shipping and customer relationship management (CRM)